Comet assays were carried out to evaluate DNA damage in human lymphocytes from 20 volunteers before and after hair dyeing. DNA damage in lymphocytes was found to be slightly higher in volunteers after hair dyeing. Tail moments before and after hair dyeing were 1.47 +/- 0.41 and 1.75 +/- 0.29 respectively (p<0.0008). DNA damage in lymphocytes showed significant difference with treatment and heat...

The textile industry uses different fibers obtained from various animals, of which the wool from domesticated sheep Ovis aries is commercially the most important. Dyeing is one of the most important finishing procedures of wool processing. It almost invariably involves absorption of water-soluble colorants from aqueous solutions by the fibers. Diffusion is the process by which the colorant mole...

In the study of color matching in textile dyeing, regression algorithm is used to analyze the nonlinear relationship between the dye concentration and the color data in CIE-La*b* color space of dyeing sample, thereby providing theory basis for establishing mathematical model for textile dyeing. Statistical analysis is conducted on a number of experimental data and the model is tested by actual ...

In the present work, rock dust was evaluated as an adsorbent and heterogeneous photocatalyst in discoloration of Basazol Yellow 46 L dye, which is widely used dyeing molded pulp packages. Although produced large quantities quarries a byproduct exploration, little known about its application photocatalyst. Rock characterized by XRD, SEM/EDS, photoacoustic spectroscopy, N2 physisorption had photo...

The textile dyeing industry consumes large quantities of water and produces large volumes of wastewater from different steps in the dyeing and finishing processes. Wastewater from printing and dyeing units is often rich in color, containing residues of reactive dyes and chemicals, and requires proper treatment before being released into the environment. The toxic effects of dyestuffs and other ...

The objective of this work was to determine the optimal conditions for electrooxidation treatment in order decolourise effluents that contain reactive dyes. According results, when Na2SO4 is used as an electrolyte, decolouration reactions follow first-order kinetics. However, NaCl present effluent, kinetics stabilised after applying a minimal electric current value. models obtained from results...